Home / 860,514.95-1,290,853.37-253,303.66

Finding the Fourth Proportional to 860,514.95, 1,290,853.37 and 253,303.66

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Solution

The fourth proportional to 860,514.95, 1,290,853.37 and 253,303.66 is: 379,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,514.95 : 1,290,853.37 = 253,303.66 : x
  2. Step 2: Convert to fraction form
    860,514.95/1,290,853.37 = 253,303.66/x
  3. Step 3: Cross multiply
    860,514.95x = 1,290,853.37 × 253,303.66
  4. Step 4: Simplify right side
    860,514.95x = 326,977,883,144.33
  5. Step 5: Solve for x
    x = 326,977,883,144.33/860,514.95
  6. Step 6: Final answer
    x = 379,979.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.